but you will find the tone is very interesting when you can speak Chinese fluently. Yes! for a same sound word, different tone stands for different meaning, and different words. Also, some characters have many different sounds. for example, Hao,if it's the third, it means good or excellent or wonderful. but when it's the fourth tone, it means like. for the former, you can use the example: zhe Ben shu hen Hao. it means this book is good. for the fourth tone, you can the example forward. Ai Hao. it means hobbies.